Bibliography of Relevant Texts, according to the BHL (Bibliotheca Hagiographica Latina). Each entry will start with the BHL Number, and then the title.
8711: Passio
8712: Passio
8712b: Passio
8712d: Passio
8713: Passio
8713b: Passio
8713d: Passio
8713f: Passio
8714: Passio
8715: Passio
8715b: Passio auct. Johanne Garzone
8716: Passio auct. Tutone mon. Tharisiensi
8717: Translatio Marianum an. 801
8718: Translatio Corbeiam in Saxonia an. 836
8719: Translatio Corbeiam in Saxonia an. 836
8719a: Translatio Corbeiam in Saxonia an. 836
8720: Epitome
8721: Carmen
8721b: Miracula SS. Viti et Modesti apud S. Andream in Lavent an. 1223
8721d: Vita metrica
8721m: Sermo in inventione reliquiarum SS. Viti, Cornelii, Cypriani et aliorum in Gladbach
8722: Translatio Pragam an. 1355 (e=Epistula Caroli IV imp.)
8723: Inquisitio facta Senis an. 1355 de servato Pragae corpore S. Viti (immo S. Guidonis de Amanannia)
Vitus: Textus (s.n.)
Under BHL 8711, I was able to locate a large number of editions from various cities. The earliest ranges from 801 to 901 in Paris. The second earliest is from 851-950, in the Vatican, which I used to locate the actual Vatican scanned entry of Vitus’ Passio.
Other entries come from various French cities, Cologne, Namur, Copenhagen, The Hague, etc.
I struggled to locate an English translation for his Passio.
The Oxford Cult of Saints in Late Antiquity project has accumulated a few documents on Vitus.
Sadly, they do not yet have an English translation of his Passio, but there is mention of him in Rome and Sicily which holds weight in establishing where he might have had medieval cult followings.
The Cult of Reagan 